Ƙarfe mai ƙarancin zafin jikiWaldaElectrode
W707Ni
GB/T E5515-C1
Bayani: W707Ni ƙaramin wutan lantarki ne na ƙarfe wanda ke ƙunshe da Ni a cikin murfin sodium mai ƙarancin hydrogen.Yi amfani da DCEP (tabbataccen lantarki na yanzu kai tsaye) kuma yana iya waldawa a duk wurare.Ƙarfin da aka ajiye har yanzu yana da tasiri mai kyau a -70 ° C.
Aikace-aikace: Ana amfani da shi don walda ƙananan zafin jiki kamar 2.5Ni.
Abubuwan sinadaran na weld karfe(%):
| C | Mn | Si | Ni | S | P |
| ≤0.12 | ≤1.25 | ≤0.60 | 2.00 ~ 2.75 | ≤0.020 | ≤0.025 |
Abubuwan kayan aikin walda:
| Gwaji abu | Ƙarfin ƙarfi Mpa | Ƙarfin bayarwa Mpa | Tsawaitawa % | Ƙimar tasiri (J) -70 ℃ |
| Garanti | ≥540 | ≥440 | ≥17 | ≥27 |
Yadawa hydrogen abun ciki na ajiya karfe: ≤6.0ml/100g (glycerin hanya) ko ≤10mL/100g (mercury ko gas chromatography hanya)
Duban X-ray: I grade
Shawarwari na yanzu:
| (mm) da Diamita na sanda | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
| (A) Welding Current | 40 ~ 70 | 60 ~ 90 | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Sanarwa:
- Dole ne a gasa wutar lantarki don 1 hour a 350 ℃ kafin aikin walda;
- Yana da mahimmanci don tsaftace tsatsa, sikelin mai, ruwa, da ƙazanta akan sassan walda kafin walda;
- Yi ƙoƙarin amfani da ƙaramin ƙarfin layi lokacin waldawa, Multi-Layer da Multi-pass waldi.
